Resume a channel that was paused while playing back
Synopsis:
#include <sys/asoundlib.h>
int snd_pcm_playback_resume ( snd_pcm_t *pcm );
Library:
libasound.so
Use the -l asound option to
qcc
to link against this library.
Description:
The snd_pcm_playback_resume() function
resumes a channel that was paused while playing back.
Returns:
EOK on success, a negative errno upon failure. The
errno values are available in the errno.h
file.
Errors:
Additional information for common error values:
- -EINVAL
- The state of handle is invalid, the channel wasn't being used
for playback, or an invalid state change occurred. You can call snd_pcm_channel_status()
to check if the state change was invalid.
- -EAGAIN
- Indicates that there's insufficient data in the buffer to play. You should write more data to the buffer.
- -ENOTSUP
- (QNX Software Development Platform 6.6 io-audio patch [patch ID 4510] or later)
Resume isn't supported on the PCM device that's referenced by the PCM handle
(pcm).
Classification:
QNX Neutrino
| Safety: |
|
| Cancellation point |
No |
| Interrupt handler |
No |
| Signal handler |
Yes |
| Thread |
Read the Caveats |
Caveats:
This function is not thread safe if pcm (snd_pcm_t) is
used across multiple threads.